Metal building structure



NOV. 30, 1937. Q P HFFMAN 2,100,957

METAL BUILD ING S TRUCTURE Filed JunA ll, 1936 3 Sheets-Sheet l 41 44 l -v l 55 ufn fl/5" l i @91 f .-'IIHIIIIll l 1 Z5 y l s V Z0 4 L37 7 56 15 www Nov. 30, 1937. G, P. HOFFMAN 2,100,957

METAL BUILDING STRUCTURE v Filed June 11, 1936 3 Sheets-Sheet 2 Gump/- NOV; 30, 1937. 3.l p, HOFFMAN 24,100,957

kMETAL BUILDING STRUCTURE Filed June ll, 1936 5 Sheets-Sheet 3 unire STA' METAL BUILDING STRUCTURE George P. Hoffman, Jacksonville, Fla. Application June 11, 1936, Serial No. 84,741

is claims.

'Ihis invention relates to a new type of metal building that may be assembled at the site from shop-formed sheets and punched angles without rivets or welds and with a minimum use of bolts, screws or other fastening means.

The invention aims to provide a i ple and readily erected metal building havin adequate provision for weather proofing andprotection from heat and cold for moderate climates. v

Other objects and advantages of the invention appear in connection with the following description of the illustrative embodiment shown in the accompanying drawings, wherein Fig. 1 is a perspective view of an interior corner of a two kstory building, partly in vertical crosssection along two planes at right angles to the walls-and iioors;

Fig. 2'is a detail view drawn to a larger scale, showing a cross-section of the foundation and lower portion of a side wall, on the line 2 2 in Fig. l, looking in the direction ofthe arrows Fig. 3 is a horizontal cross-section through the side walls a't a corner, on the line 3 3 in Fig. 1;

Fig. 4 is a vertical cross-section through a side.

wall and door, on the line 4 4 in Fig. 1;

Fig. 5 is a vertical cross-section of the floor, taken on the line 5 5 in Fig. 4 at right angles to the latter;

Fig. 6 is a vertical cross-section through a corner of a side wall at'the roof, showing a modied design; and 1 Fig. 7 is a perspective View of a corner ofthe building showing the parts of the side walls, door and ceiling disassembled in their relative positions to illustrate the manner of construction and assembly.

Figs. 3, 4., 5 and 6 are drawn to the same scale.

The building shown in the drawings is a two story and roof structure of rectangular plan having a concrete foundation and first floor, and metal sides, second oor, ceilings and roof, with such weatherproong and insulation as is required by the climate, location and purpose for which it is designed.

The foundation II and ground floor I2 may be formed of concrete laid directly on the ground or in a suitable excavation, the outer edge of the foundation at the oor linebeing beveled oi and provided with an inverted trough shaperidge I 3.

projecting slightly above the vfloor and providing a support for the lower edges of the horizontally disposed outer wall sections I4. The inner -wall sections I5, which are vertically disposed, are supported attheir lowerl ends on' channels I6 laid on the floor just inside of the ridge I3, with their vertical legs facing inwards and their horizontal legs secured by bolts I l, as shown in Fig. 2. The lower ends of the inner wall sections I5 are preferably secured to the channels by screws I8 of suitable type. An asphalt strip Ill or other 5 waterproofing means, is laid ony the ridge I3 between it and the V-shape flanges I9 with which the outer Wall sections I4 are formed.

Both the outer wall sections I4 and the inner wall sections I 5 are trough shape in cross-section, 10 being formed with iianges I9, 20 along their edges, respectively, and as shown best in Fig. 7, the flanges 2d of the inner wall sections are provided With inclined notches or slots 2l to receive the downwardly bent edges of the anges I9 on 15 the outer wall sections, the inner and outer wall sections being arranged with their anged faces towards each other so as to be concealed in the wall. The ends of the outer wall sections are mitered at the corners of the building (see Figs. 3 20 and 7) and maybe covered with angles 22 -secured thereto by suitable means, such as pointed screws inserted through punched holes in the angles and driven and screwed into the sheet metal beneath. 25

The joints between the flanges of the outer wall sections may be filled with any suitable plastic waterproong material either at the time of erection or later, but the shape of these flanges in itself prevents water from entering the walls except under most severe conditions. No iilling is needed between the iianges of the inner wall sections, although they may be lled with roof cement, putty, or other plastic material wherever theydo not abut closely becauseof imperfections 35 in workmanship 'or damage. in handling` or erecting.

Openings for doors and windows may be formed of lengths and widths corresponding to multiples Aof the width of the wall channels b y omitting 40 portions ofsuch of these channels as may be desired. These openings are suitable for receiving door and window frames of usual construction y and made either of wood or of metal, but as these. frames form Vno part of my invention they 45 are not shown infthe drawings.

The floors are composed of trough shape lower' sections 24 and inverted trough shape upper sections 25, laid at right angles to each other and supported at their ends on the upper ends of the 5o vertical wall sections I5. The side ange 26 along one edge of each lower floor section 24 has an inturned edge 2l to give the flange additional 'stiiness and thus strengthen the section as a whole. These iianges and the side flanges 28 of 55 the upper iioor sections are provided with'slots 29'. to receive the similarly slotted ianges of the mating ioor sections, asshown in detail in Figs. 4, 5 and 7. i

lThe floors are protected around their outer edges by the outer wall panels I4, which cover any openings at the ends of the channel shape floor sections, and they may be spaced therefrom suiliciently to prevent conduction of heat and cold directly to the floor sections. The ends of the upper tier of inner wall sections rest directly on the top faces of the upper iioor sections, and any partitions desired may be rested directly on the iioor sections, which are stiff enough to bear a considerable load thus distributed across them. Channels are advantageously used for securing the ends of the inner wall sections I5 to the floor sections, and these channels may be attached to the adjacent sheet metal sections by screws in like manner to the channels 22. The upper ends of the-lower tier lof inner wall sections may be secured to the floor likewise if desired.

A ceiling is provided consisting of inverted trough shape sections 34 provided with plain flanges 35 for stiiening them and supporting wood or metal strips 36 to which the ceiling sheets 3'I are attached by nails or other suitable fasteners. The ceiling supporting strips 36`are preferably wedge shape and held in dovetail notches 38 in the flanges 35. The ceiling sections 34 run across the room in one direction only, being supported on their ends by channels 39 screwed to the inner side Wall sections I5, as shown in Fig. 4. A sheet 40 of felt, building paper or other sound deadening means may be placed between the oor and ceiling if desired.

The roof is similar to the floor in its construction, comprising lower and upper trough shape channels 44, 45, supported at their ends on the sides and ends of the wall sections I4,

I5, as shown in Fig. l. The upper ends of the inner wall sections I5 are cut along diagonal lines to conform to the pitch of the roof if it is not perfectly flat, and an angle 4I is secured thereto and to the ends of the roof section for holding them together and assisting in supporting the roof.

In the modied design shown in Fig. 6, the roof is ilat and covered with a layer of insulating and waterproofing material 42 protected by a layer of sheet metal 43 or other suitable surface covering or coating; and the outer wall sections I4 are lined with insulating board 46 or other form of non-conducting material, to prevent sweating and rusting on their inner sides.

"The invention has many advantages in addition to its simplicity and inherent strength and rigidity. The double wall and roof construction largely prevents sweating on the inner wall, as the inner andouter sections touch only at the intersections of their flanges. and the inner Wall remains substantially *at the same temperature as the inside of the building when the temperature drops outside.

The horizontal exterior wall sections with their inverted lV flanges provide adequate' protection against driving rain and water from the roof, 4and such condensation of moisture as occurs on their inner sides is caught in these iianges and prevented from dripping down the inside of the walls. The downwardly inclined edges of the anges of the outer wall sections also lock the inneriand outer sections together as they are assembled, thereby dispensing with screws. bolts weather, as the narrow cracks between them v may readily be filled with plastic cement or other Waterproofing material after they have been assembled. Where these inner sections stop at a oor level, the outer sections are continuous from below to above the floor, thereby concealing and protecting the edges of the oors.

The two way trough shape floor sections form a stii iioor supported from all four sides and do away with the need for floor" beams and other frame members in buildings having the interior space divided` into rooms of not over eighteen to twenty feet in length and breadth by bearing partitions of similar construction to the outer walls, The fioor sections are so arranged that the lower sections 25 with the strengthened anges 26, 21, extend in the direction of the shorter span.

In the. pitch type of roof, the lower trough shape `sections extend up and down the slope to catch any water that may come through the roof and convey it over the flanged outer wall section and oi aty the eaves, as illustrated in Fig. l, the ends of these lower panels extending slightly overthe eaves for this purpose.

The invention lends `itself readily to changes in the -form and arrangement of the Wallsv and iioors, and obviously is capable of adaptation to many different kinds of smallv buildings. The invention is not restricted to the details of construction shown.

What I claim is as follows:

1. A metallic building structure comprising trough shape side wall sections arranged in hori.

zontal tiers on the outside and in vertical rows on the inside of the wall structure, the edge flanges of said'sections abutting within the wall structure with the flanges ofthe respective tiers of horizontal sections in endwise alinement at the corners and mitered to iit, whereby the ends of the outer sections project beyond and support the edge flanges of the inner sections at the corners, and means iorsecuring said alining ends together.

2. A metallic building structure comprising horizontally disposed flanged outer sections arranged in tiers with their anges abutting on the inside of the wall, vertically disposed flanged inner sections arranged in a row with their flanges abutting'on the inside of the wall, the flanges of said -inner sections being notched to receive the adjacent edges of the anges of they outer secment of said ilanges `from said notches, means l for supporting the lower ends of--said vertically disposed sections, and a floor or roof v,structure overlapping the upper ends .0f said vertically .dis-

posed sections and supportedV thereby, whereby said vertically disposed sections tie said structure together with the 'intervening spaces. in communication throughout both vertically, and horizontally. f

3. A metallic building structure comprising horizontally. disposed 4ilangedfouter sections arranged in tiers with their ilanges abutting on the inside of the wall, vertically disposed flanged inner sections arranged in a row with their anges porting the lower ends of said vertically disposed and a floor or roof structure overlapping the upper ends of said vertically disposed sections and supported thereby, one of said horizontal sections c overing and protecting the outer edge of said oor or roof.

4. A metallic building structure comprising interengaging flanged sections in its side Walls Weather, vertically disposed inner side wall lower sections provided with stiiening anges notched to receive the anges of the outer sections, a metallic floor supported on the upper ends of said inner side wall lower sections and supporting in trn the lower ends of inner side wall upper sections, the outside wall sections being supported thereby in interengaging relationship from bottom to top across the l outer edges of said door.

5. A metallic building structure comprising interengaging horizontally disposed flanged sections forming the outer face of its side walls,

said sections having their anges inwardly disposed and provided with down-turned edges, vertically disposed anged sections forming the inner face of its side walls having their flanges facing towards the outer wall sections and provided gage to retain the sections in assembled position.

6. A metallic building structure comprising interengaging horizontally disposed flanged sections forining the outer face of its side walls, said sections having their anges inwardly disposed, vertically disposed flanged sections forming the inner face of its side walls having their anges facing towards the outer wall sections and provided with notches into which the edges of the flanges on the outer sections engage to retain the sections in assembled'position, the depths of said notches being less than the width of the ilanges on the inner sections and the inner edges of the anges of the outer sections being spaced from the inner wall sections, and means for supporting the lower ends of said inner wall sections.

7. A metallic building structure comprising anged sections in its side walls arranged in horizontal tiers on the outside to prevent entrance of the weather, vertically disposed inner side wall lower sections provided with stiening flanges notched to receive the flanges of the outer sections, Aa. metallic door supported on the upper ends of said inner side wall lower sections and Supporting in turn the lower ends of inner side wall upper sections, the outside Wall sections being supported thereby in abutting relationship Y and an inclined roof over-v irom bottom to top, lapping and supported on the upper ends of said inner side wall upper sections, the upper ends of said inner side wall upper sections being cut at an angle to suit the inclination 'of the roof.

8. A metallic building structure comprising flanged sections in -its side wallsr arranged in horizontal tiers on the outside inclined to conform to prevent entrance of the Weather, vertically disposed inner side wall lower sections providedwith stiffening ilanges notched to receive the flanges of the outer sections, a metallic floor supported on the upper ends of said inner' side wall lower sections and supporting in turn the lower ends of .inner side wall upper sections, the outside wall sections being supported thereby in abutting relationship from bottom to top, and a metallic roof overlapping and supported on the upper ends of said inner side wall upper sections, the upper `ends of said inner side wall upper sections being shorter than the height of the upper flange of the uppermost outside wall section, whereby the outer edge of said roof is coveredV and protected by said outside wall section.

9. A metallic wall `structure comprising horizontally disposed vilangexi outer sections arranged in tiers with their body portions in vertical. alinement and flanges abutting on the inside of the wall, said anges being continuous to form unbroken -joints between said sections, vertically disposed iianged inner sections arranged in a row with their ilanges abutting on the inside of the wall and spaced from the body portions.` of said outer sections, some of lsaid vertical ilanges being notched to receive the adjacent edges of the flanges of the horizontal sections, means for preventing disengagement of said flanges from said notches, and means for' supporting the lower ends of said vertically disposed. sections.

l0. A metallic building structure comprising I side walls formed of two series of trough shape sections having their edge iianges facing towards the inside of the wall, the outer sections being arranged with their flanges in contact horizontally, and the inner sections being arranged with their anges in contact vertically, and spaced notches in the edges of the flanges of the inner sections alining with the anges of the outer sections and adapted to receive the latter to form a rigid hollow wall, having no metallic contact between thev inner and outer sections except at said notches.

11. A metallic building structure comprising side walls formed of two series of trough shape sections having their edge flanges facing towards the inside of the wall, the ilanges on the outer sections being inverted V-shape in their position of assembly and said sections being arranged with their flanges in contact horizontally, and the inner sections being arranged with their flanges in contact vertically, and spaced notches in the edges of the flanges of the inner sections to the slant of the flanges on the outer-.sections and adapted to receive and hold the latteragainst outward movement when assembled to form a rigid hollow wall.

12. A metallic iloor structure comprising two series of trough shape sections 4extending crosswise of the building from side wall to side wall lin both directions, the sections of one series belng disposed with the ianges uppermost and the sections of the'other series being disposed above the first series with their iianges underneath and resting on the rst series, the flanges of the ilrst series having their extremities bent horizontally to underlie and support the trough portions of the second series, and notches in the edges of the flanges of both series to provide for interengagement thereof., to form a rigid wise of the'building from side wall to side wall portions of the second series. and notches inthe fin both directions, the sections of one seriesbeedges of the anges of both series to provide for ing disposed with the anges uppermost and interengagement thereof to form a rigid structhe sections of the other series being disposed ture, and a. layer of Waterproofing material sup- 5 above therst series with their iianges underported by the trough portions of ysaid second 5 neath and resting on the rst series, the flanges series. of the first series having their extremities bent GEORGE P. HOFFMAN. horizontally to underlie and support the trough 1 

